2025 One Hertz Challenge: Using Industrial Relays to Make a Flasher
These days, if you want to flash some LEDs, you’d probably grab a microcontroller. Maybe you’d go a little more old-school, and grab a 555. However, [Jacob] is even more …read more
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https://hackaday.com/2025/08/10/2025-one-hertz-challenge-using-industrial-relays-to-make-a-flasher/